Field induced resistivity anisotropy in SrRuO_3 films

摘要

SrRuO_3 is an itinerant ferromagnet with orthorhombic structure and uniaxial magnetocrystalline anisotropy-features expected to yield resistivity anisotropy. Here we explore changes in the resistivity anisotropy of epitaxial SrRuO_3 films due to induced magnetization in the paramagnetic state by using the planar Hall effect. We find that the effect of the induced magnetization on the in-plane anisotropy is strongly angular dependent, and we provide a full description of this behavior at 160 K for induced magnetization in the (001) plane.